Cantilever umbrella

ABSTRACT

The present invention relates to a cantilever umbrella comprising a plurality of retaining plates, an upper hub, an lower hub, a plurality of support ribs and a plurality of strut spreaders, and the structure of the cantilever umbrella is that: the support ribs are hinged to the upper hub, the two ends of each strut spreaders are hinged to the lower hub and the support rib respectively, the cantilever umbrella further comprises a switch mechanism, a support arm, a first bearing rod and a second bearing rod, the two ends of the first bearing rod are hinged to the lower hub and the upper portion of the retaining plate respectively, one end of the second bearing rod is hinged to upper hub and the other end of the bearing rod is provided with a support block, the intermediate portion of the first bearing rod is hinged to the intermediate portion of the second bearing rod, the two ends of the support arm are hinged to the second bearing rod and the retaining plate respectively, the switch mechanism is fixedly mounted on the retaining plate, the support block is detachably mounted on the switch mechanism, preferably, the cantilever umbrella further comprises a rotatable retaining mechanism which is conducive to the rotation of the canopy. The cantilever umbrella of this invention is of simple structure, easy to manipulate, economical and functional and can be used in a tiny space, and thus the present invention is appropriate to be applied widely.

FIELD OF TECHNOLOGY

The present invention relates to the technical field of daily supplies, especially to the technical field of umbrellas, in particular to a cantilever umbrella hanging on the wall.

DESCRIPTION OF RELATED ARTS

Existing sun-shading products hanging on the wall or carried by support posts mostly deploy complex structure and are of high price. With the living area decreasing, people expect to be entertained by the fun of sun-shading in a tiny space such as the balcony. To meet their requirements, an economical and functional cantilever umbrella which can be used in a tiny space is needed.

SUMMARY OF THE INVENTION

Aspects of the present invention generally pertain to a cantilever umbrella which is of simple structure, easy to manipulate, economical and functional. The cantilever umbrella can be used in a tiny space, thus the present invention can be widely applied.

The present invention is realized through the following technical solutions:

-   -   A cantilever umbrella comprising a plurality of retaining         plates, an upper hub, a lower hub, a plurality of support ribs         and a plurality of strut spreaders, each of the support ribs         being hinged to the upper hub, each of the strut spreaders         having one end hinged to the lower hub and the other end hinged         to the support rib, characterized in that, further comprises a         switch mechanism, a support arm, a first bearing rod and a         second bearing rod; the first bearing rod has one end hinged to         the lower hub and the other end hinged to the upper portion of         the retaining plate; one end of the second bearing rod is hinged         to the upper hub and the other end of the second bearing rod is         provided with a support block; the intermediate portion of the         first bearing rod is hinged to the intermediate portion of the         second bearing rod; the support arm has one end hinged to the         second bearing rod and the other end hinged to the retaining         plate; the switch mechanism is fixedly mounted on the retaining         plate; the support block is detachably mounted on the switch         mechanism.

In a further aspect, the cantilever umbrella further comprises a rotatable retaining mechanism; the retaining plate comprises a first retaining plate and a second retaining plate; the rotatable retaining mechanism disposed in the space between the first retaining plate and the second retaining plate is fixedly mounted on the first retaining plate and the second retaining plate respectively; the support arm is hinged to the second retaining plate; the switch mechanism is fixedly mounted on the second retaining plate; the first bearing rod is hinged to the second retaining plate.

In yet another aspect, the upper end of the first retaining plate is rotatably connected to the upper end of the second retaining plate.

In a further aspect, the rotatable retaining mechanism comprises a rotating handle, a retention screw, a first locking block and a second locking block, the first locking block engages with the second locking block; the retention screw equipped through the first locking block and the second block engages with the thread of the rotating handle; the first locking block is fixedly mounted on the second retaining plate; the second locking block is fixedly mounted on the first retaining plate; the support arm is hinged to the second retaining plate; the switch mechanism is fixedly mounted on the second retaining plate.

In yet another aspect, the cantilever umbrella further comprises a first L-shaped plate and a second L-shaped plate; the first L-shaped plate is fixedly mounted on the second retaining plate and the second L-shaped plate is fixedly mounted on the first retaining plate; the first locking block is fixedly mounted on the first L-shaped plate and the second locking block is fixedly mounted on the second L-shaped plate respectively.

More preferably, the retaining screw is a mushroom head square neck screw; the mushroom head square neck screw equipped through the first L-shaped plate, the first locking block, the second locking block and the second L-shaped plate engages with the thread of the rotating handle; the neck of the mushroom head square neck screw is locked in an opening provided by the first L-shaped plate.

In a further aspect, the switch mechanism comprises a housing, a toothed plate and a lever; the lower portion of the toothed plate is fixedly mounted inside the housing; the lever is rotatably mounted inside the housing; the lower end of the lever abuts on the toothed plate; the housing provided with a sliding groove is fixedly mounted on the retaining plate; the support block is equipped through the sliding groove and is locked by the toothed plate.

In yet another aspect, the switch mechanism further comprises a flexible assembly which is disposed in the space between the toothed plate and the housing is connected to the toothed plate and the housing respectively.

In a further aspect, the cantilever umbrella further comprises a switch handle which is disposed on the second bearing rod and is adjacent to the support block.

In a further aspect, the number of the support ribs is three and the number of the strut spreaders is three.

The advantages of the present invention are as follows: The cantilever umbrella of present invention is unfolded in a scissors-like form. It can be fixedly mounted on the wall or supported by a support post. Its specific rotatable retaining mechanism enables the canopy to swing left and right and the switch mechanism makes it easy to fold and unfold the umbrella. The cantilever umbrella is of simple structure, easy to manipulate, economical and functional and can be used in a tiny space. It's appropriate to be applied widely.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the front view of the cantilever umbrella of the embodiment, with the umbrella folded.

FIG. 2 is the stereogram of the cantilever umbrella of the embodiment in FIG. 1.

FIG. 3 is the front view of the umbrella of the cantilever umbrella of the embodiment in FIG. 2.

FIG. 4 is the partial enlarged view of area A in FIG. 3.

FIG. 5 is the exploded view of the cantilever umbrella of the embodiment in FIG. 4.

FIG. 6 is the assembly schematic view of the retaining plate and the rotatable retaining mechanism of the cantilever umbrella of the embodiment in FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention is further exemplified hereinafter by reference to the accompanying drawings and the following embodiments.

Referring to FIGS. 1-6, the cantilever umbrella of present invention comprises two retaining plates 1, an upper hub 2, a lower hub 3, a plurality of support ribs 5 and a plurality of strut spreaders 6. The support ribs 5 are pivotally hinged to the upper hub 2. The two ends of each strut spreader 6 are hinged to the lower hub 3 and the support rib 5 respectively. The cantilever umbrella further comprises a switch mechanism 7, a support arm 9, a first bearing rod 10 and a second bearing rod 20. The two ends of the first bearing rod 10 are hinged to the lower hub 3 and the upper portion of the retaining plate 1 respectively. One end of the second bearing rod 20 is hinged to the upper hub 2 and the other end is provided with a support block 21. The intermediate portion of the first bearing rod 10 is hinged to the intermediate portion of the second bearing rod 20. The two ends of the support arm 9 are hinged to the second bearing rod 20 and the retaining plate 1 respectively. The switch mechanism 7 is fixedly mounted on the retaining plate 1 and the support block 21 is detachably mounted on the switch mechanism 7.

In the further aspect, the cantilever umbrella further comprises a rotatable retaining mechanism 8. The retaining plates 1 comprises a first retaining plate 11 and a second retaining plate 12. The rotatable retaining mechanism 8 which is disposed in the space between the first retaining plate 11 and the second retaining plate 12 is fixedly mounted on the first retaining plate 11 and the second retaining plate 12. The support arm 9 is hinged to the second retaining plate 12 and the switch mechanism 7 is fixedly mounted on the second retaining plate 12. The first bearing rod 10 is hinged to the second retaining plate 12.

In yet another aspect, the upper end of the first retaining plate 11 is rotatably mounted on the upper end of the second retaining plate 12. Referring to FIG. 6, the cantilever umbrella in the embodiment of this invention further comprises a first L-shaped plate 13 and a second L-shaped plate 14 which are rotatably connected to each other. The first L-shaped plate 13 is fixedly mounted on the first retaining plate 11 and the second L-shaped plate 14 is fixedly mounted on the second retaining plate 12. The first L-shaped plate 13 overlapping the second L-shaped plate 14 partly is connected with the second L-shaped 14 by a screw 15. The first retaining plate 11 is able to rotate around the second retaining plate 14 when it is necessary.

In a further aspect, the rotatable retaining mechanism 8 comprises a rotating handle 81, a retention screw 82, a first locking block 83 and a second locking block 84. The first locking block 83 engages with the second locking block 84. The retention screw 82 equipped through the first locking block 83 and the second locking block 84 engages with the thread of the rotating handle 81. The first locking block 83 is fixedly mounted on the second retaining plate 12 and the second locking block 84 is fixedly mounted on the first retaining plate 11. The support arm 9 is hinged to the second retaining plate 12. The switch mechanism 7 is fixedly mounted on the second retaining plate 12.

In yet another aspect, the cantilever umbrella further comprises a first L-shaped plate 85 and a second L-shaped plate 86. The first L-shaped 85 plate is fixedly mounted on the second retaining plate 12 and the second L-shaped plate 86 is fixedly mounted on the first retaining plate 11. The first locking block 83 fastens the first L-shaped plate 85 and the second locking block 84 fastens the second L-shaped plate 86.

Referring to FIG. 6, in the embodiment of present invention, the retention screw 82 is a mushroom head square neck screw which is equipped through the first L-shaped plate 85, the first locking block 83, the second locking block 84 and the second L-shaped plate 86 engages with the thread of the rotating handle 81. The head of the mushroom head square neck screw is locked in the opening provided by the first L-shaped plate 85. The two L-shaped plates 85, 86 are locked by the second retaining plate 12 and the first retaining plate 11 respectively. By adjusting the tightness of the mushroom head square neck screw, the first locking block 83 switches between releasing the second locking 84 and engaging with the second locking block 84 so that the second retaining plate 12 will rotate around the first retaining plate 11 relatively achieved by the two L-shaped plates 85, 86.

In a further aspect, the switch mechanism 7 comprises a housing 71, a toothed plate 72 and a lever 73. The lower portion of the toothed plate 72 is fixedly mounted inside the housing 71 and the lever 73 is rotatably mounted inside the housing 71. The lower end of the lever 73 abuts on the toothed plate 72. The housing 71 provided with a sliding groove 74 is fixedly mounted on the first retaining plate 1. The support block 21 is equipped through the sliding groove 74 and is locked by the toothed plate 72.

In yet another aspect, the switch mechanism 7 further comprises a flexible assembly 75 disposed in the space between the toothed plate 72 and the housing 71. The flexible assembly 75 is connected to the toothed plate 72 and the housing 71 respectively. Referring to FIGS. 4 and 5, in the embodiment of the present invention, the flexible assembly 75 is a spring. The housing 71 is fixedly mounted on the second retaining plate 12.

For ease of operation, referring to FIG. 3-5, in the embodiment of present invention, the cantilever umbrella further comprises a switch handle 22 which is disposed on the second bearing rod 20 and is adjacent to the support block 21.

The numbers of the support ribs and the strut spreaders are arbitrary. Referring to FIG. 2, in the embodiment of this invention, the number of the support ribs is three and the number of the strut spreaders is three.

In order to achieve different or better effect of sun-shading, rotatable retaining mechanism 8 is added to the cantilever umbrella of present invention. The retaining plate 1 can be hung onto the wall or carried by a support post. The rotatable retaining mechanism 8 controls the rotation of the canopy. When the rotating handle 81 is turned counterclockwise, the mushroom head square neck screw becomes loose and the first locking block 83 releases the second locking block 84. Pulling the switch handle 22 makes the canopy swing. When the canopy reaches the desired position, turn the rotating handle 81 clockwise and the first locking block 83 releases the second locking block 84 achieved by the tightening of the mushroom head square neck screw, thus the canopy is fixed on a certain position.

For ease of operation by the clients, when the cantilever umbrella of this invention is unfolded achieved by the switch mechanism 7, hold the switch handle 22 and push the support block 21 disposed on the second bearing rod 20 into the sliding groove 74 provided by the housing 71. The support block 21 is locked by the toothed plate 72 and the umbrella is unfolded. When the umbrella is folded, the client pulls the lever 73 in the direction of the arrow showed by FIG. 3, and the lever 73 acts on the toothed plate 72 thus causing the toothed plate 72 releasing the support block 21. At the same time, the client should hold the switch handle 22 and pull the support block 21 outwards and the umbrella is folded accordingly.

To sum up, the cantilever umbrella of present invention which is of simple structure, easy to manipulate, economical and functional and can be used in a tiny space is appropriate to be applied widely. 

I claim:
 1. A cantilever umbrella comprising a plurality of retaining plates, an upper hub, a lower hub, a plurality of support ribs and a plurality of strut spreaders, each of the support ribs being hinged to the upper hub, each of the strut spreaders having one end hinged to the lower hub and the other end hinged to the strut spreader, characterized in that, further comprises a switch mechanism, a support arm, a first bearing rod and a second bearing rod; the first bearing rod has one end hinged to the lower hub and the other end hinged to the upper portion of the retaining plate; one end of the second bearing rod is hinged to the upper hub and the other end of the second bearing rod is provided with a support block; the intermediate portion of the first bearing rod is hinged to the intermediate portion of the second bearing rod; the support arm has one end hinged to the second bearing rod and the other end hinged to the retaining plate; the switch mechanism is fixedly mounted on the retaining plate; the support block is detachably mounted on the switch mechanism.
 2. The cantilever umbrella according to claim 1, characterized in that, further comprises a rotatable retaining mechanism; the retaining plate comprises a first retaining plate and a second retaining plate; the rotatable mechanism disposed in the space between the first retaining plate and the second retaining plate is fixedly mounted on the first retaining plate and the second retaining plate respectively; the support arm is hinged to the second retaining plate; the switch mechanism is fixedly mounted on the second retaining plate; the first bearing rod is hinged to the second retaining plate.
 3. The cantilever umbrella according to claim 2, characterized in that, the upper end of the first retaining plate is rotatably connected to the upper end of the second retaining plate.
 4. The cantilever umbrella according to claim 2, characterized in that, the rotatable retaining mechanism comprises a rotating handle, a retention screw, a first locking block and a second locking block, the first locking block engages with the second locking block; the retention screw equipped through the first locking block and the second block engages with the thread of the rotating handle; the first locking block is fixedly mounted on the second retaining plate; the second locking block is fixedly mounted on the first retaining plate; the support arm is hinged to the second retaining plate; the switch mechanism is fixedly mounted on the second retaining plate.
 5. The cantilever umbrella according to claim 4, characterized in that, further comprises a first L-shaped plate and a second L-shaped plate; the first L-shaped plate is fixedly mounted on the second retaining plate and the second L-shaped plate is fixedly mounted on the first retaining plate; the first locking block is fixedly mounted on the first L-shaped plate and the second locking block is fixedly mounted on the second L-shaped plate respectively.
 6. The cantilever umbrella according to claim 5, characterized in that, the retaining screw is a mushroom head square neck screw; the mushroom head square neck screw equipped through the first L-shaped plate, the first locking block, the second locking block and the second L-shaped plate engages with the thread of the rotating handle; the neck of the mushroom head square neck screw is locked in a hole provided by the first L-shaped plate.
 7. The cantilever umbrella according to claim 1, characterized in that, the switch mechanism comprises a housing, a toothed plate and a lever; the lower portion of the toothed plate is fixedly mounted in the housing; the lever is rotatably mounted inside the housing; the lower end of the lever abuts on the toothed plate; the housing provided with a sliding groove is fixedly mounted on the retaining plate; the support block is equipped through the sliding groove and is locked by the toothed plate.
 8. The cantilever umbrella according to claim 7, characterized in that, the switch mechanism further comprises a flexible assembly which is disposed in the space between the toothed plate and the housing and is connected to the toothed plate and the housing respectively.
 9. The cantilever umbrella according to claim 1, characterized in that, further comprises a switch handle which is disposed on the second bearing rod and is adjacent to the support block.
 10. The cantilever umbrella according to claim 1, characterized in that, the number of the support ribs is three and the number of the strut spreaders is three. 